Clean up KVM's PV TLB flushing when running with EPT on Hyper-V, i.e. as
a nested VMM. No real goal in mind other than the sole patch in v1, which
is a minor change to avoid a future mixup when TDX also wants to define
.remote_flush_tlb. Everything else is opportunistic clean up.
Ran Hyper-V KVM unit tests (if those are even relevant?), but haven't
actually tested on top of Hyper-V.
v2: Rewrite everything.
Sean Christopherson (10):
KVM: VMX: Track common EPTP for Hyper-V's paravirt TLB flush
KVM: VMX: Stash kvm_vmx in a local variable for Hyper-V paravirt TLB
flush
KVM: VMX: Fold Hyper-V EPTP checking into it's only caller
KVM: VMX: Do Hyper-V TLB flush iff vCPU's EPTP hasn't been flushed
KVM: VMX: Invalidate hv_tlb_eptp to denote an EPTP mismatch
KVM: VMX: Don't invalidate hv_tlb_eptp if the new EPTP matches
KVM: VMX: Explicitly check for hv_remote_flush_tlb when loading pgd
KVM: VMX: Define Hyper-V paravirt TLB flush fields iff Hyper-V is
enabled
KVM: VMX: Skip additional Hyper-V TLB EPTP flushes if one fails
KVM: VMX: Track PGD instead of EPTP for paravirt Hyper-V TLB flush
arch/x86/kvm/vmx/vmx.c | 102 ++++++++++++++++++++---------------------
arch/x86/kvm/vmx/vmx.h | 16 +++----
2 files changed, 57 insertions(+), 61 deletions(-)
--
2.28.0
